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题名: An activated carbon fiber cathode for the degradation of glyphosate in aqueous solutions by the Electro-Fenton mode: Optimal operational conditions and the deposition of iron on cathode on electrode reusability
作者: Lan, Huachun; He, Wenjing; Wang, Aimin; Liu, Ruiping; Liu, Huijuan; Qu, Jiuhui; Huang, C. P.
刊名: WATER RESEARCH
出版日期: 2016-11-15
卷号: 105, 期号:0, 页码:575-582
关键词: Electro-Fenton ; Glyphosate ; Activated carbon fiber (ACF) ; Electrode reusability
DOI: 10.1016/j.watres.2016.09.036
部门归属: 中国科学院饮用水科学与技术重点实验室
英文摘要: An activated carbon fiber (ACF) cathode was fabricated and used to treat glyphosate containing wastewater by the Electro-Fenton (EF) process. The results showed that glyphosate was rapidly and efficiently degraded and the BOD5/COD ratio was increased to >0.3 implying the feasibility of subsequent treatment of the treated wastewater by biological methods. The results of ion chromatography and HPLC measurements indicated that glyphosate was completely decomposed. Effective center dot OH generation and rapid recycling/recovery of the Fe2+ ions at the cathode were responsible primarily for the high performance of the ACF-EF process. Factors such as inlet oxygen gas flow rate, Fe2+ dosage, initial glyphosate concentration, applied current intensity, and solution pH that may affect the efficiency of the ACF-EF process were further studied and the optimum operation condition was established. Results of SEM/EDX, BET and XPS analysis showed the deposition of highly dispersed fine Fe2O3 particles on the ACF surface during the EF reaction. The possibility of using the Fe2O3-ACF as iron source in the EF process was assessed. Results showed that the Fe2O3-ACF electrode was effective in degrading glyphosate in the EF process. The deposition of Fe2O3 particles on the ACF electrode had no adverse effect on the reusability of the ACF cathode. (C) 2016 Published by Elsevier Ltd.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36154
Appears in Collections:中国科学院饮用水科学与技术重点实验室_期刊论文

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Recommended Citation:
Lan, Huachun,He, Wenjing,Wang, Aimin,et al. An activated carbon fiber cathode for the degradation of glyphosate in aqueous solutions by the Electro-Fenton mode: Optimal operational conditions and the deposition of iron on cathode on electrode reusability[J]. WATER RESEARCH,2016,105(0):575-582.
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文件名: An activated carbon fiber cathode for the degradation of glyphosate in aqueous solutions by the Electro-Fenton mode Optimal operational conditions and the deposition of iron on cathode on electrode reusability.pdf
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